there. >> the new world is discovered. and columbus is instructed to write letters to the pope. chatty travel logs about all the things he's seeing and the natives and what they look like and how fascinating ta are. filling in the pope in order to soften the pope toward the spanish perspective. the portuguese and spanish are spatting about who is going it own what. >> this got very ugly and tense. and it seemed likely to result in war. >> they turned to the papacy. to adjudicate. international boundary. >> it's the pope who literally draws the line on the map of the ocean. >> everything east of that line belonged to portugal. and that's how brazil came to be a portuguese colony. >> may 12, 1493, pope alexander